A random sample for five exam scores produced the following (hours of study, grade) data values: Hours

Question:

A random sample for five exam scores produced the following (hours of study, grade) data values:
Hours Studied (x) Test Grade (y)
3.5 ...............88
2.4 ...............76
4 ...............92
5 ...............85
1.1 ...............60
a. Compute the covariance.
b. Compute the correlation coefficient